Legitimate site used by Intermedia.net, Exchange Hosting Provider. I suppose because they offer Exchange Web access and it was called OWA (outlook web access) a while back such a name was chosen for control panel. Not phishing.
This is the administrative portal for Intermedia's hosted POP, IMAP and Exchange email platform. Any phishing or spamming coming from this site should be reported to Intermedia along with the offending domain.
EVIL! This is not Microsoft, this is some bad actors attempting to phish Microsoft account login credentials from the unwary.
Unlike the usual phishing throwaway site, they have a HTTPS certificate, but it's not clear who it's for. But would the real Microsoft have a domain registered at Godaddy, with privacy protected whois?